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@anm was vIviAN K. Smarter LYNN, MASSACHUSETTS.

Leners Param No'. 76,543, dated April. 7, 186s.'

IMPROVED MACHINE FOR POLISHINGA'TEB El-EELS OP BOOTS AND SHOES.

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TO ALL WHOM IT vMAY CONCERN:

Be it known that I, VIVIAN K. SPEAR, of Lynn, in the county of Essex, and State of Massachusetts, have invented a new'iand useful Improvement in Machines for Polishing the Heels of' Boots and Shoes; and I do -hereby declare that the following is a full, clear, and exact description thereof, reference being had to the vwere issued to me, bearing date the 10th day of December, 18467.

accompanying drawings, and the letters of reference marked thereon.

My invention consists in certain new und useful improvements upon a machine for which Letters Patent In the accompanying drawings- Figure 1 is Ya top view of my improved machine, I Figure 2 is a side elevation 'of the same, and

Figures 3 and 4 are detached views of parts hereinafter described.

A is the platform, ou which the machine ismounted, and A the frame, which supports the operative- C is the main dfriving-shaft, which is rapidly rotated by a strap -passing round the pulley'iC, or by any other suitable means.

D is another pulley, mounted onA the same driving-shaft, and which, by means of a cord or strap, c, passing round a pulley, a, on a shaft, E, rotates said shaft, with the'brush-wheelE, waxing-wheel e, and shoulder-Wheel ef, mounted-thereon. i A

F is a bracket or restfin which the boot or shoe is suspended while the heel is being polished. This bracket is mounted on a sliding base-plate,` F', in the platform A, which slides, longitudinally, between two guides, a and a. `The bracket Fis mounted o n a single post, B, rising vertically from the sliding plate P', having a swivel-joint at b, which allows the boot-holding bracket to be turned horizontally, so as to present the heel to the polisher at varying angles.

i Gr is a lever, having its fulcrum,g, under 'the platform A, and H is a connecting-rod, hinged at one end to the said lever Gr, and at the other to the sliding plate F. p

I is a pawl, pivoted, at t', to the lever G, and engaging witha ratchet, z", made fast to the platform A, and 7' is a connecting-rod, pvoted at its lower end to said pawl I, and at its upper end to one branch of a forked lever, L, the other branch of'which is pivoted to the lever G'. A'spring, Z,'operating'to press thetwo levers L and G a-Sunder, kee ps the pawl I down on the ratchet. I

When it is desired to move thebo'ot-holding bracket forward or backward, the operator presses the upper ends of the levers L and Gtowards eachother, which raises the pawl so that .it will clear the ratchet, when, by means of the lever G, the sliding plate F is easily moved in either direction, carrying the boot orshoe to or from .the polisher. As soon as the pressure on lever L is released, the spring Z causes the pawl instantly to engage with `the ratchet, and hold the sliding plate Fl firmly in place. i i

' K is u horizontal shaft, passing through a sleeve, K, on the outer arm of the bracket F. 'On that part of the shaft K which is embraced within the sleevefK" there is a male-screw thread,and a'inatchthread in the sleeve, so that by turning the wheel m, on the outer end ofthe shaft K, a longitudinal movement is given tov said shaft.v The said shaft K has a detachable point, p, attached to it by a swivel-joint at p', which is to be used when the boot or shoe to be operated upon has a last in it; but when there is .no last in the boot or-shoe,

said pointp is detached, and a button, q, (fig. s'ubstituted.

R is a cluteh,.pivoted to the inner arm of the bracket F, and having a point,-r, opposite and on a line with the pivot on which it turns, and a flange, 7", to t the frontstraight edge of the boot-heel. The boot or shoe is inserted between the pointsp and 1', so that the point 1' W-ill puncture the central part of the bottom of the heel, and the pointp will puncture the top of the last, opposite the point 1'. The shaft K is then screwed forward until said points suiciently penetrateA the'boot-heel and' the last, to hold the boot or shoe suspended between said points; or, when there is ne last in the boot'or shoe, und the button g is substituted for thepoint p, the shaft K is screwed forward until said button presses on the ii'rrncr sole,iopposite the point 7'.

N is the heel-polisher, having an elastic bearing in a crank, n, as described in my .said patent of December- 10, 1867. This crank is oscillated by means of an eccentric, 0,'on the endof the driving-shaft C, and a 'connecting-rod, o', attached thereto by means of a dam-yoke, y, so that it gives the polisher a reciprocating motion in the line of an arc of a'circle, as described in my said former patent. As this motion ofthe polishel.

is very rapid, I have'found that, in a machine constructed as described in my s aid former patent, a disagreeable jarring accompanies the motion oftheerank. In this invention, I obviate said defect by Ameans of two elastic Washers or bumpers, s and s', in the joint by which the connecting-rod cis attached to' the cani-yoke. The stem of the cam-yo-lie has an open slot, t, in it, and the connecting-rod'passes through aA soclret in the outer end of said stem, and protrudes into said slott. The elastic washers which I use are rubber rings, but anyV other suitable elastic subs'tancemay be used. The washer 8 is interposed -bet-Ween a shoulderlon the connecting-rod and the outer end of the cam-yoke stem, and the washer s is placed on lthe end of` the connecting-rodY which protrudesintotbe slot t, and is secured there by a. screw-nut, t. J A A. l

The boot or shoe being-suspended in the bracket or 'rest F, as, before described, and the machine set in motion, said4 bracket may be turnedon its swivel-jointed support, andthe boot or shoe turned' vertically infits bearingaso as to bring all parts of the heel to be polished successively in vcontact with the reciprocating polisher, as described in my said formerpatent.

The shoulder-whcele performs the function heretofore performed by an instrument knoivn as a4f-:-hoi1lderv stick. The boot-heelis held against saidwheelobyhand, andturn'ed so as'to bring all parts to be operated upon' by it successively in contact with the wheel.

I claim as my inventionfand as improvements upon my said former invention, and desire to 'secure by lLetters Patentwv 4 v 1. In combination with the boot-holdingl brachen-mounted on a sliding base-plate, the lever G, with ratchet, pavvl, and connecting-rod I, substantially as and for the purpose described.

2. 'In combination with the sliding bracket, lever G, connecting-rod I, and ratchet and pawl, I claim the forked lever L, spring l, and connecting-rod substantially asland'for the purpose yset forth.

3. In combination with the'boot-holding'braeket and polisher, as describedI claim the clutch R, with the centralpoint 1' and danger', substantially as and for the purpose specified. 4 v

4. In colmbinationlwlth thebracket and polisher, I claim the attachable and detachable button q, as and for the purpose described. .Y

. VIVIAN K.I SPEAK.

Witnesses:

Jos. L. CooMBs, J. J. Cocinas. 

